/*
 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.sun.max.demo;

import com.sun.max.memory.*;
import com.sun.max.platform.*;
import com.sun.max.unsafe.*;

/**
 * Test getting platform's physical memory characteristics.
 */
public class PhysMemTest {
    public static void main(String[] args) {
        if (!System.getProperty("java.vm.name").startsWith("Maxine")) {
            System.out.println("Should run with a Maxine VM");
            System.exit(0);
        }
        long physicalMemorySize = VirtualMemory.getPhysicalMemorySize().toLong();
        int pageSize = Platform.platform().pageSize;
        int kPerPage = pageSize / Size.K.toInt();
        long physicalMemoryM = physicalMemorySize / Size.M.toLong();

        System.out.println("Physical Memory = " + physicalMemorySize + " bytes, "  + physicalMemoryM + "M, " + (physicalMemorySize / pageSize) + " x " + kPerPage + "K pages");
    }
}
